Mastervolt CombiMaster 12/3000-100: 230V Marine Inverter/Charger for Seamless Onboard Power

The Mastervolt CombiMaster 12/3000-100 (230 V) is a compact, high‑reliability inverter/charger designed to keep your boat’s electrical system steady and responsive, no matter how you power it. Built for maritime environments, it combines a powerful true‑sine‑wave inverter with a smart, multi‑stage battery charger, delivering clean, stable 230 V power to both essential systems and high‑demand appliances.

Why this CombiMaster stands out

• Unmatched compactness in its class: Among inverter/chargers of its capability, the CombiMaster 12/3000-100 is noted for being one of the most compact and lightweight options, making installation easier in tight engine rooms or compact panels.
• True sine‑wave 230 V output with robust performance: 3000 VA / 2600 W continuous, suitable for demanding loads, with higher surge capacity for startup currents. This ensures sensitive electronics, motors, and appliances run smoothly without hiccups.
• Smart, efficient charging: An intelligent 3‑step+ charger delivers fast, safe charging at up to 100 A (configurable) with battery temperature sensing to protect battery life and optimize charge rates.
• Automatic AC transfer and Power Assist: The automatic transfer system switches seamlessly between mains/generator power and inverter output, and Power Assist helps prevent mains fuses from tripping when shore power is weak or when a generator is undersized. These features reduce downtime and keep critical systems online.
• Generator compatible and ready for variable shore power: Designed to handle the realities of marine power availability, the CombiMaster supports operation with generators and fluctuating AC inputs, maintaining stable output to your vessel’s electrical suite.
• Broad integration with onboard monitoring: Built with MasterBus, CZone and NMEA 2000 compatibility, it enables extensive monitoring and system integration. You can monitor and control from MasterView or touch displays, or integrate with third‑party multifunction displays.
• Remote control and quick installation: MasterBus remote options (SmartRemote or EasyView 5) and heavy‑duty connections streamline setup and give you flexible, dock‑side access to system status.
• Certified and marine‑ready: E‑mark certified for 230 V models, with robust protection and suitability for marine environments.

What this means in practice: on a sailing yacht or motor cruiser, you’re not just getting a bigger charger—you’re getting a complete power management solution. The CombiMaster 12/3000-100 delivers steady shore‑powered comfort for galley appliances, navigational electronics, and climate control, while still delivering reliable DC power to keep essential systems alive during transitions between power sources.

Key specifications at a glance

• Inverter rating: 12 V input, 3000 VA / 2600 W continuous; 4500 VA / 3900 W surge (5 seconds); up to 6000 VA / 5200 W maximum. This means strong performance for demanding loads and quick response to startup currents.
• AC output: 230 V, 50/60 Hz, true sine wave; electrically compatible with a wide range of marine devices.
• Charger: Intelligent 3‑step+ battery charger, up to 100 A at 14.25 V (configurable); battery temperature sensor included for safe, optimized charging.
• Input range & efficiency: Wide AC input considerations with derating below certain voltages; high efficiency to minimize energy waste.
• Protection & certification: Generator compatibility, Power Assist, MasterBus/CZone/NMEA 2000 communication, and E‑mark certification for 230 V models.

Designed by Mastervolt, a brand trusted by maritime professionals for reliable power management, the CombiMaster series combines cutting‑edge control with practical, real‑world usability. The system is built for remote monitoring and integration, so you can keep an eye on battery health, charging status, and power flow from the comfort of your salon or from a distant dockside location.